ICT Engineer MariaDB Expert

Purpose

We are looking for a MariaDB Expert who will serve as a technical specialist for designing building monitoring optimizing and maintaining MariaDB database environments.
The role also includes analyzing datasets identifying optimization opportunities improving performance and validating technical approaches through data-driven decision-making.

 Team description

Join the team at operational services GmbH within Deutsche Telekom IT Solutions Slovakia offering opportunities for German- and English-speaking talents. OS is one of the leading ICT service providers in the German market delivering modern and secure IT solutions long-term operational support and ensuring availability of critical business processes for medium-sized and enterprise customers.

WHAT WILL YOU DO

Administration operation and maintenance of MariaDB database environments
Design implementation and optimization of MariaDB architectures 
Planning and executing installations upgrades migrations and patching of MariaDB instances
Monitoring database performance and tuning queries indexes and configurations
Implementing and maintaining backup & recovery strategies including PITR (Point-in-Time Recovery)
Troubleshooting database issues analyzing root causes and implementing long-term fixes
Ensuring high availability reliability and optimal performance of MariaDB systems
Managing replication setups (master-slave GTID semi-sync etc.)
Supporting high availability and disaster recovery (HA/DR) environments (e.g. Galera Cluster MaxScale)
Creating and maintaining technical documentation runbooks and operational procedures
Collaborating closely with development infrastructure and operations teams
Ensuring compliance with security policies audit standards and general governance requirements
Contributing to automation initiatives and continuous service improvements

Qualifications :

YOU WILL SUCCEED IF YOU:

Have minimum 3 years of hands-on experience with MariaDB or MySQL administration
Strong understanding of MariaDB architecture components and internal processes
Practical experience with:

• Installation configuration maintenance
• Query tuning execution plan analysis indexing strategies
• Backup & recovery concepts and tools
• Monitoring and troubleshooting complex issues
  Solid knowledge of SQL and ability to optimize complex queries
  Familiarity with Linux server environments (administration fundamentals required)
  Experience with replication (ROW/STATEMENT GTID async semi-sync)
  Experience with HA/cluster setups (Galera MaxScale advantage)
  Analytical systematic and structured way of working
  Strong teamwork communication skills and customer-oriented approach
  Ability and willingness to perform on-call duties

Nice-to-Have Technical Knowledge

Experience with additional RDBMS platforms (Oracle PostgreSQL MS SQL Server)
Understanding of cloud-based database services (Azure AWS RDS Google Cloud SQL)
Knowledge of shell scripting (Bash) or automation tools
Experience with monitoring tools and dashboards (e.g. Grafana Prometheus Zabbix)
Familiarity with containerized database deployments (Docker Kubernetes)

Certifications (Preferred)

MariaDB MySQL or Linux administration certifications are an advantage

Language Requirements

English: Upper Intermediate (B2)
German: Nice to Have

Additional Information :

WHY SHOULD YOU CHOOSE US

We believe in balance between work and personal life. An attractive and extensive work-life balance portfolio guarantees lasting motivation for employees and thus a better quality of life promotes physical and mental well-being and contributes to a positive work environment. All this with the aim of providing more freedom in reconciling work career growth private life and individual lifestyle. Therefore we offer to our employees over 25 different benefits to improve their personal and professional life in these areas:

• Financial benefits
• Benefits with focus on learning and development
• Benefits with focus on health and sport
• Benefits with focus on family and work life balance
• Other benefits

For more information about our benefits click to Benefits

Salary

Final salary is negotiable.

We are offering base salary depending on seniority level and previous experience of addition to base salary we provide variable part and other financial benefits. Base salary will not be lower than 1300 /brutto.

Additional information

* Please be informed that our remote working possibility is only available within Slovakia due to European taxation regulation.

Remote Work :

Yes

Employment Type :

Full-time